Sumatriptan
A triptan for migraine attacks. 50 mg at onset, repeat after 2 hours if it returns, max 300 mg a day.
On this page
Dose
50 mg orally at the start of the headache (25–100 mg). If the headache returns, repeat after at least 2 hours; max 300 mg in 24 hours. Don't take a second dose for the same attack if the first didn't work.
Cautions
- Avoid in ischaemic heart disease, previous stroke, uncontrolled BP, peripheral vascular disease.
- Chest tightness, tingling, flushing.
- Triptans on 10 or more days a month cause medication-overuse headache.
Frequently asked questions
Can sumatriptan be repeated?
Yes, after at least 2 hours if the migraine returns, up to 300 mg a day.
Used in these guides
Sources
Doses on this page are typical doses from the sources above. Always confirm with a current drug reference, the product leaflet and your hospital protocol, especially in children, pregnancy and kidney or liver disease.